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← GeographyWhich geological outcome increases when magma viscosity rises?
A)Explosive volcanic eruption intensity✓
B)Frequency of shield volcano formation
C)Hydrocarbon reservoir permeability enhancement
D)Deep ocean vent system lifetime
💡 Explanation
Explosive volcanic eruption intensity increases because higher magma viscosity promotes volatile accumulation leading to increased pressure culminating in violent release via explosive volcanism rather than effusive flow, therefore intensity increases, rather than gradual shield volcano formation.
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